Improvement in adjustable window-shades



'anatema para entre.

WARRNQHASTINGS, 0F BOSTON llLiSSAGllUSETTS.`

Letters Patent No. 107,902, dated October 4, 1870. l

IMPROVEMENT |NADJUSTABLE wlNDow-SHADES.

'Ihe`ScI1e`du1e referred to in thesel Letters Patent and making part ofthe same.

I, E. VARREN HASTIXGS, of Boston, inthe county of Su'olk and State ofMassachusetts, haveinvented Ian Adjustable Window-Shade, of which thefollowing is a specification; i

. Nature and Objectis of the Invention.

The nature'of my invention relates to an improvement on wimlow-shadcs,whereby'the roller, 'that on "common shades is` stationary,may be movedup or. down, so` as to. admit light fromthe top or bottom of awindow,.or, if' the window is open, 'to admit the entrance ot' air fromabove or below-the shade, 'as may be desired. i

The objections to common window-shades are, that when the shade islowered and the window opened at the top, all'conmninication between theroom and the outer air is prevented; also, it' the shade is needed atthe lower part of the win'dow,;the whole shade must be lowered to effectthis, thus darkening the room more than is necessary; also, that if theupper window'is loweredand the-lower one raised, when the shade ispartlydown, fresh air may enter at the lower part of the window, but theexit of the impure air at the topis prevented bythe shadecovering theopening at the top.

To avoid these difculties i's the purpose of my'invention, Ias bylowering the shade-roller, free communication may behadi'orn the outerto the inner air when the "window is opened at'top or bottom, and it acovering is wanted at the-lower part of the window, the roller can belowered toeffect this, and at the In the drawing- Figure lis a frontview.

y Figure 2 is a side view,'seen from y, iig. '1. y.

Figure 3 is a section ovcrthe line x y, taken .ou fig.`1." v y Figure 4is au eulargedgfront view of the cordholder h, and f Figure 5 is a sideviewof the said cord-holder.

e a is the window-sash,` to the upper part of which is secured twobearings?)1 b, support-ing between them a rod, c. f

The rod c has in each end a corrugated pulley, d d,

`same time admit light from the top oi` the window.

` over which the cords e e are moving.

` cords e c.'

The adjustable shade-roller y has a pulley, fi, attached in one end,over which thecord it is wound in a usual way.

The shade l is made to wind on or od" the roller g, by means of pulley tand cordln A tassel, m, or similar arrangement, is secured to the roda,at the lower end of. theshade in a usual way. l

he bearings f f have ca ch in their rear part an eye, o o, as guides forthe-rear cords e e, whereby the cords are held in their proper pla-ces.

From the .above it will be easily understood that when the cords e e-areproperly stretched, the adjustable roller g, with the shade l, may beraised or -lowered simply bydrawing one of the-cords c cup or down, asthecase may require.

The corrugated pulleys d-d onl the rod c impart an equal motion tothecords c e, in each end of the roller y, so that the-said roller g .willrise or fallalways parallel with the rod c.

71.' is a common cord-holderand stretcher, for the purpose of conductingthe cord e, and giving it the' proper tension.

h is a similar one, but supplied with a locking apparatus for the cord,as shown in au enlarged scale in figs. 4 and 5.

Fig. 5 shows the screw 1) playing through the plate q, which latter issecured to the body r, as shown.

A plate, s, is tapped to receive the thread of the screw p. e,

By this .a1-rangement, the plate s can easily be pressed againstA theunder side of the stationary piece q.

The cord is guided by the small pulley t, and placed in the 'spacebetween thelplate q and the movable piece s.-

AWhen it is desired to lock the cord e, I simply press the cord betweenthe pieces s and q, by mc-ans" of screwing the screw 11 to the right,when the 'cord is securely held 'so as 'uot to allow any motion up ordown of the shade.

3y turning the screw p to -the left, the hold of the piece s tothe cordis loosened, and the shade may then be raised or lowered at pleasure.

Instead tot' the screw 1I, I also employ a spring,

'i nesses:

HENRY' lroKnmNc, ALBAN ANDRIN.

